Creating Roasted Heart Potatoes is straightforward if you follow these steps:

1. Preheat the Oven: Preheat your oven to 425°F (220°C).
2. Prepare the Potatoes: Wash the potatoes thoroughly. Cut them into heart shapes using a small cookie cutter or a knife.
3. Season the Potatoes: In a large bowl, combine the cut potatoes with olive oil, garlic powder, rosemary, salt, and black pepper. Toss until evenly coated.
4. Arrange on Baking Sheet: Spread the seasoned potatoes in a single layer on a baking sheet lined with parchment paper.
5. Roast: Place the baking sheet in the preheated oven. Roast for 30-35 minutes, flipping the potatoes halfway through to ensure even cooking.
6. Check for Doneness: The potatoes should be golden brown and crispy on the outside. A fork should easily pierce the flesh.
7. Garnish: Once done, remove the potatoes from the oven and let them cool for a few minutes. Garnish with fresh parsley if desired before serving.

Following these steps will lead to delicious Roasted Heart Potatoes that are sure to impress!